On the top of ignitability is Denso Iridium TT , since it has the thinnest central electrode diameter 0.4 mm vs 0.6 mm on NGK ! I have a idea how to increase the ignitability further based on PSPE NGK design but would share it only if appropriately asked:)
@@jeprerderwererwer56 This is response as from 13-15teen years old :) Also , it shows that you don’t have any clue:) This happens when only Google has been your best friend:) “Beru is the best ( which must include the best in ignitability mean as well ) , because it’s Porsche , MB OEM “:) How old are you ?
The parts (4x Ruthenium HX) should cost them about $50 CAD, so if that was the PARTS charge you were ripped. If that's the overall bill then totally fine.
I have their ruthenium plugs installed and gained an extra 40kms range per tank. So yeah, I'd definitely give them a try if you need to change plugs anyway.
If you are getting extra 40km of range is because your old spark plugs where so bad. Any new non broken spark plug will give you that benefit @@ajg71sg81
